Klingenfuss Shortwave Radio Frequency Guides, there are downloadable guides there in PDF format.http://www.klingenfuss.org/swfguide.htm
Klingenfuss: We wish to thank more than 70 experienced collaborators and radio monitors worldwide for valuable contributions and updates.

Best site for those new to SW Radios: Finding SW stations, Understanding Radio Frequencies, Reviews of radios, Choosing yours - https://swling.com/FindingStations.htm
Based on Review at SWLING, I purchased a new AM/FM/SW/SW/SSB (USB/LSB) & more, Radio Tecsun PL-660 for $106.00 including shipping. I like it a lot, for excellent features & functions.
"The Tecsun PL-660 is currently one of the most popular portable shortwave radios on the market--and for good reason. The PL-660 has a full compliment of features and is quite easy to operate. The sync detector (selectable USB/LSB) is currently one of the best in the sub $150 US price range." https://swling.com/Radios.htm

" Welcome to the ARRL Exam Review for Ham Radio™, an online browser-based resource for your computer, tablet or other mobile device. Use this review and practice exam resource with the current editions of ARRL License Manuals: http://arrlexamreview.appspot.com/

You do not need to be a [paid] ARRL member nor have an ARRL website account to use this site.
It has the Question Pools for every class license, and is easy to use in Review Mode, and Practice Exam Mode. It tracks your progress, practice test scores and really helps get you ready for the Tests, whatever your level.

Technician Class Ham Radio License Manual, good through June 2018
Read online or download free PDF here https://www.pdf-archive.com/2017/07/25/ ... l-tech.pdf
This is a good study guide for the basic electronics, antenna propagation, and band plans for Technician License. There are likely a few new changes to FCC Laws in the July 1, 2018 guide. You can check for those changes on ARRL website, linked above. But the easier way I would suggest is using the other more up-to-date KY4KY website for studies too. It is in a previous post.

I have not updated my own head with the more recent new FCC Laws for ham.
It's on my TDL

Very good videos on nearly ALL of SW Radio Brands. Todderbert, is near Chicago, he's the best for SW, he's highly logical & correctly reviews operations, his Playlists are very organized by brand/model, you'll find what you need to get a head start on SW Radios, go here to search Playlists:https://www.youtube.com/user/novakpower/playlistsTecsun PL-660 Daytime Shortwave FM & MW Band Scans

Tecsun PL-660 Evening Shortwave & MW Band Scans

I really like the Tecsun PL-660 model, works very well and easy to program and use. Very good sound on AM/FM bands, on SW depends on the sky & distance from source. LOL, AJ is on 4840SW, but I don't like agit-prop.Edit: Update... You can buy wherever you want, I suggest "Anon-Co" as best seller for best price & selection is good. Received shipment in about 9 days counting order date. https://www.anon-co.com/

Download HamSphere 4.0
For users with Basic or Advanced knowledge in Amateur RadioIf you are a beginner, please start with version 3.0! Same download page but on bottom of page, link, go here - http://www.hamsphere.com/download.php

Installing instructions HamSphere 3.0 1. Java: Make sure your PC has the latest Java from www.java.com 2. Microphone: HamSphere needs an active microphone connected to your computer. Headsets are preferred. 3. Windows: Download the EXE installer and run it. Follow the instructions. 4. Windows 8, 64-bit: You must install Java version 7, release 10 and above. Also you need to run HamSphere as Administrator. Download the JAR file, save it on your desktop, right click and Open As "Open with Java (TM) Platform SE Binary".

5. Linux or Mac: JAR files are Java runtime executable files. Never unzip the jar-file even if suggested. Save the jar file intact somewhere on your computer, like the desktop and right click "open with" Java (TM) platform binary.

6. Linux: Save the jar file as hamsphere.jar in your home directory. Open a root terminal window and execute java -jar hamsphere.jar

A word about firewalls: If you get white screens when you launch the HamSphere transceiver, the firewall is blocking it. HamSphere uses TCP port 80 and 8010 and it is important that the HamSphere application is allowed access to web pages via port TCP 80 and communication via TCP port 8010. In some Windows 7 and 8 installations, JAVA applications are automatically blocked in the Windows firewall and you must open the ports manually.

HamSphere Features: https://www.hamsphere.com/features
We've designed HamSphere to simulate a real shortwave Amateur Radio Station. No installation of antennas, cables or amplifiers necessary. Accessible anywhere, anytime, on any device. It has all the features you need.

DOWNLOAD:
Download, install and start calling CQ in minutes - Reach thousands of Ham Operators and radio enthusiasts from over 200 countries. HamSphere works in Windows, Mac or Linux as well as iPhone and Android.

Well, it works as long as the Internet is alive.
I am optimistic that it will remain on, barring known grid shut-off fools, there are
Billions of $ spent in E-Commerce annually here in USA.